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Testing oscillating primordial spectrum and oscillating dark energy with astronomical observations
Liu J(刘杰); Li H(李虹); Zhang XM(张新民); Liu, J; Li, H; Xia, JQ; Zhang, XM
2009
发表期刊JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS
期号7页码:17
通讯作者[Liu, Jie ; Li, Hong ; Zhang, Xinmin] Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China ; [Li, Hong ; Zhang, Xinmin] Chinese Acad Sci, TPCSF, Beijing 100049, Peoples R China ; [Xia, Jun-Qing] Scuola Int Super Studi Avanzati, I-34014 Trieste, Italy
文章类型Article
摘要In this paper we revisit the issue of determining the oscillating primordial scalar power spectrum and oscillating equation of state of dark energy from the astronomical observations. By performing a global analysis with the Markov Chain Monte Carlo method, we find that the current observations from five-year WMAP and SDSS-LRG matter power spectrum, as well as the "union" supernovae sample, constrain the oscillating index of prim ordial spectrum and oscillating equation of state of dark energy with the amplitudeless than vertical bar n(amp)vertical bar < 0.116 and vertical bar w(amp)vertical bar < 0.232 at 95% confidence level, respectively. This result shows that the oscillatory structures on the primordial scalar spectrum and the equation of state of dark energy are still allowed by the current data. Furthermore, we point out that these kinds of modulation effects will be detectable (or gotten a stronger constraint) in the near future astronomical observations, such as the PLANCK satellite, LAMOST telescope and the currently ongoing supernovae projects SNLS.
关键词power spectrum inflation CMBR experiments
学科领域Astronomy & Astrophysics; Physics
研究领域[WOS]Astronomy & Astrophysics ; Physics ; Astronomy & Astrophysics ; Physics
DOI10.1088/1475-7516/2009/07/017
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语种英语
研究领域[WOS]Astronomy & Astrophysics ; Physics ; Astronomy & Astrophysics ; Physics
WOS类目Astronomy & Astrophysics ; Physics, Particles & Fields
WOS记录号WOS:000269971100004
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被引频次:7[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/240362
专题理论物理室
粒子天体物理中心
多学科研究中心
作者单位中国科学院高能物理研究所
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Liu J,Li H,Zhang XM,et al. Testing oscillating primordial spectrum and oscillating dark energy with astronomical observations[J]. JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS,2009(7):17.
APA 刘杰.,李虹.,张新民.,Liu, J.,Li, H.,...&Zhang, XM.(2009).Testing oscillating primordial spectrum and oscillating dark energy with astronomical observations.JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS(7),17.
MLA 刘杰,et al."Testing oscillating primordial spectrum and oscillating dark energy with astronomical observations".JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS .7(2009):17.
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